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From: Aakash Hemadri <aakashhemadri123@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Larry Finger <Larry.Finger@lwfinger.net>,
	Phillip Potter <phil@philpotter.co.uk>
Cc: linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH v4 2/5] staging: r8188eu: cast to restricted __be32
Date: Mon, 23 Aug 2021 22:30:27 +0530	[thread overview]
Message-ID: <50439a81aca7ce8c3c97ec1c7247f4cd03f645a5.1629563318.git.aakashhemadri123@gmail.com> (raw)
In-Reply-To: <cover.1629563318.git.aakashhemadri123@gmail.com>

Fix sparse warning:
> rtw_br_ext.c:836:54: warning: cast to restricted __be32

dhpch->cookie is be32, change it's type.

Suggested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Aakash Hemadri <aakashhemadri123@gmail.com>
---

I had incorrectly removed bytsewapping without considering the hardware
runs in big endian rather change type to __be32 as sugessted by Larry.

 drivers/staging/r8188eu/core/rtw_br_ext.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_br_ext.c b/drivers/staging/r8188eu/core/rtw_br_ext.c
index f6d1f6029ec3..f65d94bfa286 100644
--- a/drivers/staging/r8188eu/core/rtw_br_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_br_ext.c
@@ -649,7 +649,7 @@ struct dhcpMessage {
 	u_int8_t chaddr[16];
 	u_int8_t sname[64];
 	u_int8_t file[128];
-	u_int32_t cookie;
+	__be32 cookie;
 	u_int8_t options[308]; /* 312 - cookie */
 };
 
@@ -671,7 +671,7 @@ void dhcp_flag_bcast(struct adapter *priv, struct sk_buff *skb)
 				    (udph->dest == __constant_htons(SERVER_PORT))) { /*  DHCP request */
 					struct dhcpMessage *dhcph =
 						(struct dhcpMessage *)((size_t)udph + sizeof(struct udphdr));
-					u32 cookie = be32_to_cpu((__be32)dhcph->cookie);
+					u32 cookie = be32_to_cpu(dhcph->cookie);
 
 					if (cookie == DHCP_MAGIC) { /*  match magic word */
 						if (!(dhcph->flags & htons(BROADCAST_FLAG))) {
-- 
2.32.0


  parent reply	other threads:[~2021-08-23 17:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-23 17:00 [PATCH v4 0/5] staging: r8188eu: fix sparse warnings Aakash Hemadri
2021-08-23 17:00 ` [PATCH v4 1/5] staging: r8188eu: restricted __be16 degrades to int Aakash Hemadri
2021-08-23 17:00 ` Aakash Hemadri [this message]
2021-08-23 17:00 ` [PATCH v4 3/5] staging: r8188eu: incorrect type in csum_ipv6_magic Aakash Hemadri
2021-08-25  9:23   ` David Laight
2021-08-28  8:45     ` Aakash Hemadri
2021-08-23 17:00 ` [PATCH v4 4/5] staging: r8188eu: restricted __be16 degrades to int Aakash Hemadri
2021-08-23 17:00 ` [PATCH v4 5/5] staging: r8188eu: incorrect type in assignment Aakash Hemadri
2021-08-28  8:50 ` [PATCH v4 0/5] staging: r8188eu: fix sparse warnings Aakash Hemadri
2021-08-28  9:44   ` Greg Kroah-Hartman

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